Toxicity and enzyme inhibition activities of the essential oil and dominant constituents derived from Artemisia absinthium L. against adult Asian citrus psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae)

Rizvi, Syed Arif Hussain; Ling, Siquan; Tian, Fajun; Xie, Feng; Zeng, Xinnian

doi:10.1016/j.indcrop.2018.05.031

Cited by 77 publications

(41 citation statements)

References 78 publications

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“…However, these enzymes can be induced by natural and synthetic insecticides that is one of the mechanisms responsible for the resistance development in insect populations . GST and CE are common detoxification enzymes that metabolize pesticides or secondary plant compounds in arthropods . GST is mainly a cytosolic enzyme that catalyzes the conjugation of electrophile molecules with reduced glutathione so that potentially toxic substances become more water soluble and, generally, less toxic .…”

Section: Discussionmentioning

confidence: 99%

“…[43][44][45] GST and CE are common detoxification enzymes that metabolize pesticides or secondary plant compounds in arthropods. 46,47 GST is mainly a cytosolic enzyme that catalyzes the conjugation of electrophile molecules with reduced glutathione so that potentially toxic substances become more water soluble and, generally, less toxic. 48 CE is an important detoxifying enzyme in vivo that hydrolyzes the ester bond in chemicals.…”

Section: Discussionmentioning

confidence: 99%

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Synthesis of thymyl esters and their insecticidal activity against Spodoptera litura (Lepidoptera: Noctuidae)

Tharamak

Yooboon

Pengsook

et al. 2019

Pest Management Science

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BACKGROUND Thymol, a natural phenolic monoterpene originating from Thymus vulgaris, is recognized as a safe and potent botanical insecticide to many insects. The structural modification of thymol into thymyl esters is a potential approach for the development of novel insecticides, which showed more toxicity than thymol. However, there are no reports on the insecticidal activity of thymyl esters to control Spodoptera litura. RESULTS Thymol was structurally modified into ten thymyl esters by esterification using a new reagent, PPh3/Br3CSO2Ph. The insecticidal activity of these compounds was examined against the second instars of Spodoptera litura using a topical application. Among the ten thymyl esters evaluated, thymyl cinnamate was the most toxic with LD50 = 0.41 and 0.34 μg/larva after 24 and 48 h posttreatment, respectively. In addition, thymyl cinnamate‐treated larvae showed increasing carboxylesterase and acetylcholinesterase activities in vivo experiment, whereas glutathione S‐transferase activity showed no significant difference. CONCLUSION Thymyl cinnamate were first reported to exhibit toxicity against S. litura 2.41–2.46 fold more efficient than thymol. However, the detailed biochemical interactions are necessary for further development of novel insecticides. © 2019 Society of Chemical Industry

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Synthesis of thymyl esters and their insecticidal activity against Spodoptera litura (Lepidoptera: Noctuidae)

Tharamak

Yooboon

Pengsook

et al. 2019

Pest Management Science

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“…A variety of documents suggest that complex mixtures would be more efficient, and synergistic effects have been reported [10,11]. Singh et al [12] demonstrated that thymol and α-terpineol synergized the impacts of both linalool and 1,8-cineole, but linalool with 1,8-cineole exhibited only an additive effect against Chilo partellus.…”

Section: Introductionmentioning

confidence: 99%

A plant-based extract mixture for controlling Spodoptera litura (Lepidoptera: Noctuidae)

Yooboon

Pengsook

Ratwatthananon

et al. 2019

Chem. Biol. Technol. Agric.

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Background: Spodoptera litura larvae are polyphagous insects that have become a significant pest in recent years. The spread of this pest has led to the continuous usage of insecticides on crops. Some plant extracts have been used as a mixture to control insect pests and improve productivity. Methods: A plant-based mixture was mixed at a ratio of 1:1 v/v to demonstrate the effect on contact toxicity, feeding (no-choice test), and enzyme activities on S. litura. The active compounds of P. retrofractum and A. calamus were isolated by preparative thin-layer chromatography (PTLC). Results: Our results showed that binary mixtures from P. retrofractum and A. calamus exhibit the highest contact toxicity and antifeedant activity at a 1:1 ratio of LD 30 :LD 10 dose (3.213 µg/larva P. retrofractum + 3.294 µg/larva A. calamus). The main active ingredient from each crude extract was (2E,4E,14Z)-N-isobutylicosa-2,4,14-trienamide from P. retrofractum, and beta-asarone and alpha-asarone from A. calamus. Additionally, A. calamus seems to be the synergistic compound. Some compound mixtures increased the glutathione-S-transferase activities in vivo; whereas, almost no significant differences in esterase activities were noted. Conclusion: The results indicated that the ethanolic crude extracts of P. retrofractum and A. calamus mixtures could be used as the pesticidal compound and to develop a binary mixture formulation for controlling lepidopteran pests. However, the toxicity of this mixture to mammals needed to be explored before commercial development.

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“…Esterase activity was evaluated by extinction coefficient of p NPA (176.47 mM −1 cm −1 ) (Rizvi et al . 2018).…”

Section: Methodsmentioning

confidence: 99%

Biochemical analysis and pathogenicity of entomopathogenic fungi to Diaphorina citri Kuwayama (Hemiptera: Liviidae)

Naeem

Freed

Akmal

2020

Entomological Research

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Asiatic citrus psylla, Diaphorina citri, Kuwayama (Hemiptera: Liviidae) is an economic pest of citrus groves and a vector of the bacterium, Candidatus Liberibacter spp., one of the causative agents of citrus greening. In order to estimate the infectivity of six different isolates of Beauveria bassiana, Metarhizium anisopliae and Isaria fumosorosea, fungal bioassay was performed on the adults of D. citri. Adults of D. citri were treated individually with 1 × 10 5 , 1 × 10 6 , 1 × 10 7 , 1 × 10 8 , 2 × 10 8 spores/mL fungal concentrations by the immersion method. Subsequent to fungal bioassay, treated D. citri were used to determine the levels of esterase and glutathione S-transferases (GST) enzymes over a period of 3-7 days. The mortality results suggest that I. fumosorosea isolates (If-02) caused 82.2% mortality on the seventh day of treatment. However, B. bassiana isolate (Bb-08) with lowest LC 50 (1.4 × 10 7 spores/mL) proved to be highest potential isolate against D. citri. Biochemical determination of esterase and GST activity assay showed significant differences in activities after infection of fungi. Significantly high activity of esterase was observed by Bb-01 (27.0 unit per mg protein) on the seventh day, while Ma-11.1 and If-2.3 (16.9 and 36.3 unit per mg protein) on the third day post treatment. However, maximum GST's activity was showen by isolates Bb-08,Ma-M 2 and If-2.3 (37.6, 1.40 and 10.9 unit per mg protein) on the third day. The current investigation will help to explore the relations between the insect defense system and entomopathogenic fungi. Moreover, the determination of enzymatic activities will be useful for selecting the most pathogenic isolates.

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Toxicity and enzyme inhibition activities of the essential oil and dominant constituents derived from Artemisia absinthium L. against adult Asian citrus psyllid Diaphorina citri Kuwayama (Hemiptera: Psyllidae)

Cited by 77 publications

References 78 publications

Synthesis of thymyl esters and their insecticidal activity against Spodoptera litura (Lepidoptera: Noctuidae)

Synthesis of thymyl esters and their insecticidal activity against Spodoptera litura (Lepidoptera: Noctuidae)

A plant-based extract mixture for controlling Spodoptera litura (Lepidoptera: Noctuidae)

Biochemical analysis and pathogenicity of entomopathogenic fungi to Diaphorina citri Kuwayama (Hemiptera: Liviidae)

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